Sound chip recordings... How is it done?

Sound chip (DSP) recordings... How is it done?

Pardon my ignorance and naivety, but....

A group of model railroaders would like to customize/personalize the train
sound announcements that have been recorded on the sound chip on their
locomotives and railcars.

Is there a website that, in layman's language, explains how sound effects
are "recorded" on a sound chip?  ... and, how one would/could "re-record"
or "re-program" a sound chip with the particular sounds that are
appropriate for ones use?

What type of equipment is necessary for programming a sound chip?

Are there companies that will "customize" a sound chip for your particular
needs?

Thanks for any and all information you can pass along   .... to us
novices!!

Trains skrev:
> Sound chip (DSP) recordings... How is it done?
>
> Pardon my ignorance and naivety, but....
>
> A group of model railroaders would like to customize/personalize the train
> sound announcements that have been recorded on the sound chip on their
> locomotives and railcars.

What does this mean? That the horn sounds differently for each train?
That the PA announcements on the stations sound differently?

> Is there a website that, in layman's language, explains how sound effects
> are "recorded" on a sound chip?  ... and, how one would/could "re-record"
> or "re-program" a sound chip with the particular sounds that are
> appropriate for ones use?

Maybe there is, but probably not from a technical point of view. As a
first suggestion, try musician's web sites and see if you can find
explanations of sound effects. You are looking for the same sort
of technology but with a different application.

Rune

"Trains" <alanchamel@hotmail.com> wrote in message
news:PeGdne9LG-AckhnZnZ2dnUVZ_vidnZ2d@giganews.com...
> Sound chip (DSP) recordings... How is it done?
>
> Pardon my ignorance and naivety, but....
>
> A group of model railroaders would like to customize/personalize the train
> sound announcements that have been recorded on the sound chip on their
> locomotives and railcars.
>
> Is there a website that, in layman's language, explains how sound effects
> are "recorded" on a sound chip?  ... and, how one would/could "re-record"
> or "re-program" a sound chip with the particular sounds that are
> appropriate for ones use?
>
> What type of equipment is necessary for programming a sound chip?
>
> Are there companies that will "customize" a sound chip for your particular
> needs?
>
> Thanks for any and all information you can pass along   .... to us
> novices!!
>
>
>
You'll need a ROM of some sort and a D/A convertor + amp and a speaker (a
cheap one that they use in toys is fine). Record the sound effects 8 bits
sampled at 11.25kHz on a PC and then write to ROM. There maybe a kit you can
buy somewhere.

M.P



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